JPS58122819A - Manufacturing method and apparatus for tube - Google Patents

Manufacturing method and apparatus for tube

Info

Publication number
JPS58122819A
JPS58122819A JP57005809A JP580982A JPS58122819A JP S58122819 A JPS58122819 A JP S58122819A JP 57005809 A JP57005809 A JP 57005809A JP 580982 A JP580982 A JP 580982A JP S58122819 A JPS58122819 A JP S58122819A
Authority
JP
Japan
Prior art keywords
film
winding
tube
heated
thermoplastic resin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP57005809A
Other languages
Japanese (ja)
Other versions
JPH0428534B2 (en
Inventor
Masataka Sakurada
正孝 桜田
Tadao Watanabe
忠雄 渡辺
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toppan Inc
Original Assignee
Toppan Printing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toppan Printing Co Ltd filed Critical Toppan Printing Co Ltd
Priority to JP57005809A priority Critical patent/JPS58122819A/en
Publication of JPS58122819A publication Critical patent/JPS58122819A/en
Publication of JPH0428534B2 publication Critical patent/JPH0428534B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/36—Bending and joining, e.g. for making hollow articles
    • B29C53/38—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges
    • B29C53/48—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of indefinite length, i.e. bending a strip progressively
    • B29C53/50—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of indefinite length, i.e. bending a strip progressively using internal forming surfaces, e.g. mandrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/10—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using hot gases (e.g. combustion gases) or flames coming in contact with at least one of the parts to be joined
    • B29C65/103—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using hot gases (e.g. combustion gases) or flames coming in contact with at least one of the parts to be joined direct heating both surfaces to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/003—Protecting areas of the parts to be joined from overheating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/03—After-treatments in the joint area
    • B29C66/034—Thermal after-treatments
    • B29C66/0342—Cooling, e.g. transporting through welding and cooling zone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4322—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/49—Internally supporting the, e.g. tubular, article during joining
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/818—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
    • B29C66/8181—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects
    • B29C66/81811—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects of the welding jaws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8221—Scissor or lever mechanisms, i.e. involving a pivot point
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411—Roller, cylinder or drum types
    • B29C66/83413—Roller, cylinder or drum types cooperating rollers, cylinders or drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411—Roller, cylinder or drum types
    • B29C66/83417—Roller, cylinder or drum types said rollers, cylinders or drums being hollow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/16—Cooling
    • B29C2035/1616—Cooling using liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/36—Bending and joining, e.g. for making hollow articles
    • B29C53/38—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges
    • B29C53/48—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of indefinite length, i.e. bending a strip progressively
    • B29C53/54—Guiding, aligning or shaping edges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid

Abstract

PURPOSE:To obtain the seal part of a high strength and a good surface, by winding the film of which at least both top and back faces are thermoplastic resin layers to a mandrel, opening the gap of a film overlapping part, sending a heated gas into the gap and pressing said overlapping part with inside and outside rolls. CONSTITUTION:The film 1 of which at least both top and back faces are thermoplastic resin layers is wound to a winding mandrel 6, a gap is opened between the end part of the inside film (a) and the end part of the outside film (b) of a film overlapping part, a heated gas is sent into the gap, the film overlapping part is heated and said overlapping part is pressed and sealed by the rolls 10, 11 located at an inside and an outside, a winding diameter being controlled by a winding diameter regulating nail 12. The continuous tube of good appearance and strength can be manufactured in such a way.

Description

【発明の詳細な説明】 本発明は、少なくとも表裏両面が熱可塑性樹脂層からな
るフィルムを丸め合せて、その重ね部をシールして連続
したチューブを得る方法及びその装置を提供するもので
ある。さらに詳しく述べるならば、一定の巾にスリット
された巻フィルムから連続的に引き出しながら、そのフ
ィルムを筒状に丸め、その両側端の重ね部を加熱し、シ
ールするもので、特には封筒貼り方式を連続的に行うこ
とを目的としている。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method and an apparatus for obtaining a continuous tube by rolling up films having thermoplastic resin layers on at least both the front and back surfaces and sealing the overlapped portions. To be more specific, the film is continuously pulled out from a roll of film that has been slit to a certain width, rolled into a cylinder, and the overlapping parts on both sides of the film are heated and sealed. The purpose is to do this continuously.

、　従来、チーープの連続的なシールは表面を溶融しに
くい樹脂層、内面を溶融しゃすし◇樹脂層を有するフィ
ルムについて実施されており、一般的にＣは、加熱バー
で間歇的に加熱、加圧シールするか、加熱し、ローレッ
ト目がつけられたロールでシールするなどの方法である
。しかしながら、その殆んどが合掌貼り方式であり、封
筒貼り方式でしかも連続シールするということは行なわ
れていない。Conventionally, continuous sealing of cheap has been carried out on films with a resin layer that is difficult to melt on the surface and a resin layer on the inner surface. Methods include pressure sealing or heating and sealing with knurled rolls. However, most of them use the gassho-pasting method, and the envelope-pasting method is not used for continuous sealing.

合掌貼り方式では、シール目が外側に出るため単なる袋
を製造するときは良いが、例えばチューブ容器の本体と
して用いる時などは外観が悪く、著しく商品性を低下さ
せる為に、高級な包装材料又は容器としての価値を失な
ってしまうことがあった。With the gassho pasting method, the seals are exposed on the outside, which is good when manufacturing simple bags, but when used as the main body of a tube container, for example, the appearance is poor and the marketability is significantly lowered, so high-grade packaging materials or In some cases, the container lost its value.

現在、封筒貼り方式で連続的にシールしているものは、
例えば、外面が紙屑、内面が低密度ポリエチレン層の構
成のフィルムなどで、重ね部の外側のフィルム側端の内
面にある可塑化しやすい低密度ポリエチレン層を外部か
ら、その紙屑を通して加熱し、可塑化し、内側のフィル
ム側端の紙層に可塑化した樹脂を喰い込ませるなどの方
法が行なわれている。Currently, items that are continuously sealed using the envelope pasting method are
For example, with a film that has paper scraps on the outside and a low-density polyethylene layer on the inside, the easily plasticized low-density polyethylene layer on the inner surface of the outer film side of the overlapping part is heated from the outside through the paper scraps to plasticize it. Another method is to inject plasticized resin into the paper layer on the inner side edge of the film.

しかしながら、上記の如き構成のフィルムでは良好な表
面性は得られないし、また接着強度も非常に弱いという
問題があった。何故ならば、前記の紙のような可塑化し
にくい層が外側にあるかぎり、必ずそのシール部には段
差が存在し、印刷、ニスコート等の二次加工の場合、絵
柄が欠けたり、ニスがその段差に溜り均一な塗布膜を形
成できないといつた問題があり、さらに強度的に弱いの
で、外部からの圧力により容易にシールの所から剥離す
るといった事が起るからである。However, the film having the above-mentioned structure has problems in that good surface properties cannot be obtained and the adhesive strength is also very weak. This is because as long as there is a layer on the outside that is difficult to plasticize, such as the paper mentioned above, there will always be a step in the seal area, and in the case of secondary processing such as printing or varnish coating, the pattern may be chipped or the varnish may This is because there is a problem in that it accumulates in the steps, making it impossible to form a uniform coating film, and furthermore, since it is weak in strength, it easily peels off from the seal area due to external pressure.

そこで、本発明者は、連続的にシールが可能で、かつ少
なくとも表裏両面に熱可塑性樹脂層を有するフィルムを
用いる事によって、外観的にも、強度的にも良好なシー
ル方法及びその製造装置を検討し、本発明を提供するに
至ったのである。すなわち、表裏両面が熱可塑性樹脂層
からなるフィルムを筒状に丸める工程、次に丸められた
フィルムの端部を加熱する工程、また巻き径を規制しな
がら、フィルム端部重ね部をシールする工程からなる連
続的なチューブを製造する方法において、丸め合わせら
れたフィルムの両側端の重ね部を加熱する際に、該フィ
ルムを巻付マンドレルに巻き付け、フィルム重ね部の両
側端である内側フィルムと外側フィルムとの間を開いて
、その両側端の間に加熱した気体を送風することによっ
て、フィルム両側端を加熱し、かつ、巻き径を規制しな
がら、該フィルム両側端の内側と外側にある二つの加圧
ロールによって前記重ね部をシールすることによって、
連続したチューブを製造する方法である。Therefore, the present inventor has developed a sealing method and manufacturing apparatus that is good in both appearance and strength by using a film that can be continuously sealed and has thermoplastic resin layers on at least both the front and back surfaces. After much research, we have come to provide the present invention. That is, the process of rolling a film whose front and back surfaces are made of thermoplastic resin layers into a cylindrical shape, then the process of heating the ends of the rolled film, and the process of sealing the overlapping parts of the ends of the film while regulating the winding diameter. In a method for manufacturing a continuous tube consisting of an inner film and an outer film at both ends of the rolled-up film, the film is wound around a winding mandrel while heating the overlapped portions on both sides of the rolled-up film. By opening the space between the film and blowing heated gas between both ends of the film, both ends of the film are heated, and while the winding diameter is controlled, the two ends inside and outside of the film are heated. By sealing the overlapped portion with two pressure rolls,
This is a method for manufacturing continuous tubes.

以下本発明の製造方法を具体的に実施するだめの製造装
置を用いて詳細に説明する。The manufacturing method of the present invention will be explained in detail below using a manufacturing apparatus that specifically implements it.

第１図は本発明のチューブ製造装置の正面図であって、
使用するフィルム（１）としては、一定の巾にス１Ｊソ
卜された少な（とも表裏両面に熱可塑性　２樹脂層乞有
する巻フィルム（２）によって供給されて℃・る。この
巻フィルム（２）は巻出ユニット（３）に載せ、引き取
られて行くときに、均一な流れで送り出されるようにテ
ンションがかかるように設計されることが好ましい。こ
こから供給されるフィルム（１）はローラー（４１ｔ４
ｒを通って、セーラー（５）に入り、フィルムを丸めこ
こで表裏反転するようにして巻付マンドレル（６）に巻
き付けられる。次に該フィルム（１１の端部ントーチ（
７）から熱風を吹きつげること乙でより加熱する。ここ
で、まず第２図に示すようにフィルム（１１の巻き方向
乞規制するために、巻付マンドレル（６１の上方を囲む
よつ妃設けられた爪・８１　ｔｓｒで重ね部の内イ目１
１になるフィルム端（ａｌｌ円内側（押え、また重ね部
の外側になるフィルム端（ｂｌが外１目１１になるよう
にフィルム（１）の位置を規制する。この場合、セーラ
ー（５）と巻き方向を規制する爪＋８１　＋８１が一体
となった構造にしても良い。FIG. 1 is a front view of the tube manufacturing apparatus of the present invention,
The film (1) to be used is supplied by a rolled film (2) having two thermoplastic resin layers on both the front and back surfaces. ) is placed on the unwinding unit (3), and when it is taken up, it is preferably designed so that tension is applied so that it is fed out in a uniform flow.The film (1) supplied from here is placed on the unwinding unit (3). 41t4
r, the film enters the sailor (5), where it is rolled up and wound around the winding mandrel (6) with the film turned inside out. Then the film (11 end torches)
7) Blow hot air from step B to further heat it. First, as shown in FIG. 2, in order to control the winding direction of the film (11), the winding mandrel (61 is provided with a claw that surrounds the upper part of the film (61) and the inner eye 1 of the overlapping part is connected to the winding mandrel (61).
Regulate the position of the film (1) so that the edge of the film that becomes 1 (all inside the circle (presser) and the edge of the film that becomes the outer side of the overlapping part (bl) is 11 on the outside.In this case, adjust the position of the film (1) so that A structure in which claws +81 and +81 regulating the winding direction are integrated may be used.

次にトーチ（７）によって加熱するとき、内側になるフ
ィルム端ｔａ＋と外１１１Ｉｌになるフィルム端（ｂ）
が次の加圧工程まで接触しないで隙間？開けるようにす
る必要があるので、第６図の断面図（Ｃ示すように、内
側になるフィルム端（ａｌの非加熱部（ｃｌＹ内側に押
える爪（９）と外側になるフィルム端（ｂ）の非加熱部
ｔｄｌ乞巻付マンドレル（６）に常に密着させる爪＋９
ｒで押えなから該両フィルム端ｔａ）、（ｂ）の間にト
ーチ（７）からの加熱気体を送って１両端部（ａｌ、（
ｂｌ　’（？離しておく必要がある。ここで外側の非加
熱部フィルム端（ａｔ？押える爪ｔ９ｒは図面の如く上
方に折り曲げておくと、トーチ（７）から送らかだ熱風
の一部がこの爪（９）の垂直壁（１３）に反射して熱風
は上方に逃げ、非シール部を加熱しないように加熱でき
る。Next, when heating with a torch (7), the film end ta+ becomes inside and the film end (b) becomes outside 111Il.
Is there a gap without contact until the next pressurization process? Since it is necessary to open it, as shown in the cross-sectional view of Figure 6 (C), the inner film edge (al non-heated part (clY) with the claw (9) that presses it inward and the outer film edge (b) Nail +9 to keep the non-heated part of TDL in close contact with the winding mandrel (6)
Using the presser r, heated gas from the torch (7) is sent between the two film ends ta) and (b), and one end of the film (al, (
bl '(? It is necessary to keep it apart.Here, if you bend the outer non-heating part film edge (at? holding claw t9r upwards as shown in the drawing, a part of the hot air sent from the torch (7) The hot air is reflected by the vertical wall (13) of the claw (9) and escapes upward, allowing heating without heating the non-sealed portion.

また、加熱されているフィルム端（ａｔ、（ｂｌが巻付
マンドレル（６）に接触すると、フィルム端（ａｌ、（
ｂｌは熱乞奪われてシール性が低下するので、該巻付マ
ンドレル；６）は内′！１１のフィルム端（ａｔの通路
近傍を凹部＋＋　４＋とする。この様に、フィルム両端
ｆａｌ、（ｂｌが内と外に離れやすくなるようにした事
によって、融着な必要としない部分は巻付マンドレルと
接触することにより冷やされるようになり、加熱気体が
多少非加熱部に流れても加熱がシールされる端部近傍の
みで、局所加熱が可能となっているので、フィルム端１
（ａｔ、（ｂｌの温度を充分高くしても、他の部分への
影響を少なくすることができ、さらにフィルムの腰があ
るので、皺が入りに（くなり、フィルムの腰が低下する
のは加熱されたフィルム端部ｔａｌ、（１）ｌのみなの
でチューブの巻径が安定するなどのメリットがある。し
たがって、巻付マンドレル（６）は冷却しておくことが
好ましい、次に、加圧シールする工程は、第４図の如く
、フィルムが弛まらないように、両サイドから突出た爪
ｆｌｕｆｆにより、巻径を規制しながら、内（［１１１
と内側に設けた二つの加圧ロール（１０）、旧）で加圧
シールする。ここで内側の加圧ロール（１０１は冷却し
にくいので、耐熱性があり、かつ高温での滑り性の良好
なものとすることが好ましい。他方、外側の加圧ロール
（１１）は冷却できる構造とし、加熱したフィルム端（
ａｌ、（ｂｌＹ重ね、加圧して融着させると同時に充分
冷却できるようにする。このようにシールされたチュー
ブは引取機（図示せず）によって図面の左方向へ引き取
られるので、フィルムは連続的にシールができるように
なる。Moreover, when the heated film ends (at, (bl) come into contact with the winding mandrel (6), the film ends (al, ()
BL is deprived of heat and the sealing performance is reduced, so the winding mandrel; 6) is inside'! The area near the passage of the film end (at) of No. 11 is made into a concave part ++ 4+. In this way, by making it easy for both ends of the film fal and (bl to separate inward and outward), parts that do not need to be fused can be wrapped. It is cooled by contact with the mandrel, and local heating is possible only near the edge where heating is sealed even if some heated gas flows to the non-heated area.
(at, (even if the temperature of BL is set high enough, the effect on other parts can be reduced), and since the film has firmness, wrinkles will not form (and the firmness of the film will decrease). Since only the heated film end tal, (1)l has the advantage of stabilizing the winding diameter of the tube, it is therefore preferable to keep the winding mandrel (6) cool. In the sealing process, as shown in Figure 4, the roll diameter is controlled by the claws protruding from both sides to prevent the film from loosening.
Pressurize and seal with two pressure rolls (10) provided on the inside. Here, the inner pressure roll (101) is difficult to cool, so it is preferable to use one that is heat resistant and has good sliding properties at high temperatures.On the other hand, the outer pressure roll (11) has a structure that can be cooled. and the edge of the heated film (
al, (blY) are stacked together and pressurized to fuse and cool sufficiently at the same time.The thus sealed tube is taken off to the left in the drawing by a take-off machine (not shown), so the film is continuously A sticker can be formed on the surface.

以上の如く、本発明にかかる製造装置においては、フィ
ルム端部乞加熱する工程からシールする工程まで、巻き
方向を規制する為の爪＋８１　！８Ｆおよび内側になる
フィルム端ｆａｔの非加熱部（Ｃ１’Ｙ内側に押える爪
（９）、外側になるフィルム端（ｂｌの非加熱部（ｄｌ
を巻付マンドレル（６）に密着させる爪（９Ｆ、フィル
ム重ね部ヲンールする時巻径を規制する為、両サイドか
らフィルムを巻付マンドレル（６１に密着させる爪（Ｉ
２１（１万、少なくとも６種類の爪を各１枚ずつ使用す
る事を特徴としたチューブの製造装置である。As described above, in the manufacturing apparatus according to the present invention, there is a claw for regulating the winding direction from the step of heating the film edge to the step of sealing. 8F and the non-heated part of the inner film end (fat) (C1'Y claw (9) that presses inward), the outer film end (bl
A claw (9F) that brings the film into close contact with the winding mandrel (6) (9F), a claw (I
21 (10,000) This is a tube manufacturing device characterized by the use of at least six types of claws, one each.

本発明は以上の如きの製造方法および製造装置であって
、例えば表裏両面がポリエチレンのような熱可塑性樹脂
乞有するフィルムからチーーブを得る方法として、従来
性なわれているような加熱バー乞接触させて加熱する方
法においては、ポリエチレンのような熱可塑性樹脂は加
熱溶融するとフィルムと加熱バーが（つついてこれを充
分冷却しないと、フィルムと加熱バーは離れないので事
実上安定性に欠け、又成形速度が遅くならざるを得ない
。また加熱したロールを接触させて溶融させシールする
方法も全く同様に現実的でなく、従って現在表裏両面を
ほぼ同じ融点を持つ熱可塑性樹脂のフィルムのシールに
連続シールは行なわれなかった。しかしながら、本発明
は連続シールを可能とし、強度的にも優れた安定したシ
ールを可能としたものであり、生産性が高いチューブの
製造方法および製造装置を提供するものである。又、そ
れだけでなく均一な速度で成形できるので、たとえば、
このフィルム巻チューブの上に樹脂ケインラインでコー
トする事、長いチューブを得る事などを容易にしたので
、本発明にががる製造方法のメリットは太きい。又、本
発明にががる装置は、セーラーの精度が低くてすみ、他
の部品も容易に作る事ができるので、装置コストは非常
に安価であり、かつ、巻径の変更も容易である。さらに
、現在歯磨チューブ容器等の本体に使用されているアル
ミ箔、紙等を含みその内外面に熱可塑性樹脂が設けられ
たチーーブを製造するにも適した製造方法および装置で
ある。The present invention relates to a manufacturing method and a manufacturing apparatus as described above, and includes, for example, a method for obtaining a cheese from a film whose front and back surfaces are made of thermoplastic resin such as polyethylene, by contacting the film with a heating bar as conventionally used. In the heating method, when a thermoplastic resin such as polyethylene is heated and melted, the film and the heating bar will not separate (unless it is cooled sufficiently, the film and the heating bar will not separate, resulting in a lack of stability, and The speed has to be slow.Also, the method of bringing heated rolls into contact and melting and sealing is also not practical at all, so currently both sides are sealed with a thermoplastic resin film that has approximately the same melting point. However, the present invention enables continuous sealing and stable sealing with excellent strength, and provides a method and apparatus for manufacturing tubes with high productivity. In addition, since molding can be performed at a uniform speed, for example,
The manufacturing method of the present invention has great advantages because it makes it easy to coat the film-wound tube with a resin cane line and to obtain a long tube. In addition, the device according to the present invention requires low accuracy of the sailor and other parts can be easily manufactured, so the device cost is very low and the winding diameter can be easily changed. . Furthermore, the manufacturing method and apparatus are also suitable for manufacturing toothpaste tubes, which are currently used for toothpaste tube containers and the like, and which include aluminum foil, paper, etc. and have thermoplastic resin on their inner and outer surfaces.

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本発明の装置を示す一実施例であり、第１図は、
本＠明の装置の正面説明図であり、第２図、第６図、第
４図は第１図のＡ−Ａ断面、Ｂ−Ｂ断面、Ｃ−Ｃ断面を
示す断面図である。 （１１・・・フ　ィ　ル　ム　　　　（２）・・・巻゛
−フィルム（３１・・・巻出ユニッｌ−（４１・・・ロ
　−　ル１５１・・・セーラ、−（６１・・・巻付マン
ドレル（７）・・・ト　　−　チ　　　（８）・・・巻
方向規制用の爪（ｑｌ　、’ｑ（・・フィルム端部乞離
すための爪（１０）・内側ロール　　０１）・・・外側
ロール］１２１・・・巻径規制用爪　　（＋３１・・・
垂　直　壁（ツ）・・・内側フィルム端部（ｂｌ・・・
外（ｉｌｌフィルム端部！ｃｌｌｉｌ・・非加熱部 特許出願人 凸版印刷株式会社 第・１図　　　１１The drawings show an embodiment of the apparatus of the present invention, and FIG.
FIG. 2 is a front explanatory view of the device according to the present invention, and FIGS. 2, 6, and 4 are cross-sectional views taken along the line AA, line BB, and line C-C in FIG. 1. (11... Film (2)... Winding film (31... Unwinding unit l- (41... Roll 151... Sera, - (61... Roll Mandrel (7)...Torch (8)...Claws (ql, 'q) for regulating the winding direction (...Claws (10) for separating the film edges, inner roll 01)... Outer roll] 121... Winding diameter regulating claw (+31...
Vertical wall (tsu)...inner film edge (bl...
Outside (ill film edge! cllil...non-heated part Patent applicant Toppan Printing Co., Ltd. Figure 1 11

Claims (2)

【特許請求の範囲】[Claims] （１）少なくとも表裏両面が熱可塑性樹脂層からなるフ
ィルムを丸め合わせ、重ね部を加熱するに、該フィルム
を巻付マンドレルに巻き付け、フィルム重ね部の内側フ
ィルム端部と外側フィルム端部との間を開いて、その隙
間に加熱した気体を送風することによって、フィルム重
ね部を加熱し、かつ巻き径を規制しながら内側と外側に
あるロールで該重ね部を加圧してシールすることを特徴
としたチューブのＭ進方法。(1) Roll up a film made of thermoplastic resin layers at least on both the front and back sides, heat the overlapping part, and then wrap the film around a winding mandrel between the inner film end and the outer film end of the film overlap part. It is characterized by opening the film and blowing heated gas into the gap to heat the overlapped part of the film, and pressurize and seal the overlapped part with the inner and outer rolls while regulating the winding diameter. M-adic method of the tube. （２）少なくとも表裏両面が熱可塑性樹脂層からなるフ
ィルムを丸める工程、次にフィルム端部な加熱する工程
、巻き径を規制しながら、フィルム重ね部をシールする
工程からなるチューブ製造装置ｊ′こおいて、フィルム
端部を加熱する工程からシールする工程まで、巻き方向
を規制する為の爪、および内側になるフィルム端の非加
熱部を内ｊｉｌｊに押える爪、外側ＶＣなるフィルム端
の非加熱部を巻イす−ｒ　７　トレルに密着させる爪、
フィルム重ねｆ４　ヲ’／−ルするとき巻径を規制する
爪、両サイドからフィルムを巻付マンドレルに苦着させ
る爪の、少なくとも各１枚ずつ設けたことを特徴とする
チューブのＭ造装置。(2) A tube manufacturing device consisting of a step of rolling a film made of thermoplastic resin layers on at least both the front and back sides, a step of heating the ends of the film, and a step of sealing the overlapped portion of the film while regulating the winding diameter. From the process of heating the film edge to the sealing process, there are claws to regulate the winding direction, claws to press the non-heated part of the inner film edge inward, and non-heater of the outer VC film edge. Wind the part-r 7 Nails that stick tightly to the trell,
A tube M-making device characterized in that it is provided with at least one pawl for regulating the winding diameter when the film is stacked and one for fixing the film on the winding mandrel from both sides.
JP57005809A 1982-01-18 1982-01-18 Manufacturing method and apparatus for tube Granted JPS58122819A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57005809A JPS58122819A (en) 1982-01-18 1982-01-18 Manufacturing method and apparatus for tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57005809A JPS58122819A (en) 1982-01-18 1982-01-18 Manufacturing method and apparatus for tube

Publications (2)

Publication Number Publication Date
JPS58122819A true JPS58122819A (en) 1983-07-21
JPH0428534B2 JPH0428534B2 (en) 1992-05-14

Family

ID=11621405

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57005809A Granted JPS58122819A (en) 1982-01-18 1982-01-18 Manufacturing method and apparatus for tube

Country Status (1)

Country Link
JP (1) JPS58122819A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6119363A (en) * 1984-07-05 1986-01-28 大日本印刷株式会社 Cylinder sticking device for laminate material
JPH0437325U (en) * 1990-07-23 1992-03-30
WO2001060588A1 (en) * 2000-02-17 2001-08-23 Cebal S.A. Method for making tubes by laser welding
KR100408807B1 (en) * 2001-05-14 2003-12-18 국제산업주식회사 a
KR200343833Y1 (en) * 2003-11-27 2004-03-05 주식회사 동양피엔에프더블유 soldering maching for plastics
WO2012106783A1 (en) 2011-02-08 2012-08-16 Mechatronica Sc Method and apparatus for longitudinal welding of tubular body

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS547477A (en) * 1977-06-20 1979-01-20 Fuji Seal Ind Co Ltd Method of joining thermoplastic synthetic resin film

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS547477A (en) * 1977-06-20 1979-01-20 Fuji Seal Ind Co Ltd Method of joining thermoplastic synthetic resin film

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6119363A (en) * 1984-07-05 1986-01-28 大日本印刷株式会社 Cylinder sticking device for laminate material
JPH0543504B2 (en) * 1984-07-05 1993-07-01 Dainippon Printing Co Ltd
JPH0437325U (en) * 1990-07-23 1992-03-30
WO2001060588A1 (en) * 2000-02-17 2001-08-23 Cebal S.A. Method for making tubes by laser welding
FR2805198A1 (en) * 2000-02-17 2001-08-24 Cebal PROCESS FOR PRODUCING LASER WELDING TUBES
KR100408807B1 (en) * 2001-05-14 2003-12-18 국제산업주식회사 a
KR200343833Y1 (en) * 2003-11-27 2004-03-05 주식회사 동양피엔에프더블유 soldering maching for plastics
WO2012106783A1 (en) 2011-02-08 2012-08-16 Mechatronica Sc Method and apparatus for longitudinal welding of tubular body

Also Published As

Publication number Publication date
JPH0428534B2 (en) 1992-05-14

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